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Grade 8 · Geometry

Angles

294 problems in this skill, each with a solver-verified answer key. Answers are checked the moment you submit — with a hint if you want one and a worked solution afterwards.

What the problems look like

A few statements from this skill. Answers, hints and worked solutions live in the practice session.

  1. Warm-up

    In triangle ABC, angles A and B are supplementary to each other. If angle A=45A = 45 degrees, find angle B.

  2. Warm-up

    In a right triangle, one acute angle measures 30 degrees. What is the measure of the other acute angle?

  3. Warm-up

    In a circle, a central angle measures 140 degrees. What is the measure of an inscribed angle that subtends the same arc?

Problems shown under their original terms: Generated (solver-verified).

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See every Geometry skill for grade 8